250+ iOS apps curated and reviewed
The best unit apps on iPhone average 3.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (8.3M) | Yes | No | Aug 2026 |
| 2 |  | Free | 4.8★ (192K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 3.6★ (150) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 2.0★ (7) | Yes | No | May 2026 |
| 5 |  | Free | — | No | Yes | May 2026 |
| 6 |  | Free | 4.7★ (408) | Yes | Yes | Aug 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | Free | — | Yes | No | Jul 2026 |
Manage your entire travel experience from flight booking and check-in to real-time updates and in-flight entertainment. Navigate airports with ease, track bags, and access support, all within one application.
Easily convert between a wide range of units across 20 categories, including length, weight, temperature, and more. Features live currency updates for 155 world currencies, refreshed daily. Designed for simplicity and visual appeal.
Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.
This application offers a professional and user-friendly interface for converting between various units. It supports over 300 units across more than 20 categories, including currency, temperature, and length.
This app offers a streamlined unit conversion experience, focusing on clarity and ease of use. It avoids common frustrations found in other converters by clearly displaying unit names and abbreviations, and by offering a simple, intuitive interface. Convert everyday units like length, weight, and temperature with confidence.
This app offers a comprehensive unit and currency converter with a vast array of categories and calculators for everyday needs. It allows users to customize templates, download shared ones, and provides automatic exchange rate updates for 167 world currencies.
Easily compare prices across different units of measurement. Convert rates for length, weight, area, volume, and density to find the best value for your purchases.
Easily convert between metric and imperial units for everyday needs. Offers a wide range of converters including currency, temperature, and length, with offline access and a favorites list for quick use.
This app offers over 30 unit converters for science, engineering, and everyday use. It features advanced options like adjustable rounding, smart search, and calculation history, with customizable themes and an iPad-optimized interface.
